How to Replace Spark Plugs — 2019-2025 Ram 1500

Replacing spark plugs on your 2019-2025 Ram 1500 is a key maintenance task to ensure smooth engine performance, prevent misfires, and improve fuel efficiency, typically needed every 30,000-100,000 miles depending on the engine and plug type. This DIY repair can save you significant labor costs, with parts costing $40-$80 compared to shop fees of $150-$300. With the right tools and this guide, most DIYers can tackle this job confidently. DIY Cost: $40-$80 | Shop Cost: $150-$300

You’re done. Clear any stored codes with your scanner and complete a normal drive cycle so the vehicle’s readiness monitors reset.

If the code returns, the root cause likely wasn’t the part you replaced — go back through the diagnostic steps before swapping anything else.